I combined data from the WF chips and the PC chip to create a wider view of <a href="http://www.spacetelescope.org/images/potw1010a/" rel="nofollow">NGC 6326</a>. This one seems to lack any major symmetry. It also lacks the more clearly demarcated shells that other planetary nebulas have, which I sometimes wonder about. Why do some have them and others do not? I would like to see if the H-alpha (f658n, red) structures extend to the right or top of the nebula just as they do to the left and below but this is as far as the data goes.

Red: hst_08773_11_wfpc2_f658n_wf_sci + hst_08773_11_wfpc2_f658n_pc_sci Green: hst_07501_14_wfpc2_f555w_wf_sci + hst_07501_14_wfpc2_f555w_pc_sci Blue: hst_08773_11_wfpc2_f502n_wf_sci + hst_08773_11_wfpc2_f502n_pc_sci